{Stus-List} Rusty Nuts

FWIW, PB Blaster is pretty much the Gold Standard penetrating oil among
the techs at the forklift and construction machinery dealers Ive worked
with over the years.
OTOH, the most common use of WD40 seems to be as diesel starting fluid. Its
a lot less explosive that ether and has its own lubricating value.
Rick Brass
From: cnc-list-bounces at cnc-list.com [mailto:cnc-list-bounces at cnc-list.com]
On Behalf Of Micheal LeVine
Sent: Tuesday, June 02, 2009 12:47 PM
To: cnc-list at cnc-list.com
Subject: Re: {Stus-List} Rusty Nuts
>From my own personal experience I have to cast some doubt on the results
below.
I had a stuffing box nut that was impossible to break loose. I tried copious
amounts of
Liquid Wrench and it just didn't work. I tried this over a period of 2
weeks, spraying on each
visit to the boat. Nada.
On the advice of someone on a Sailnet forum, I tried Power Blaster. In 15
minutes following
the application, the nut came free.
The nut and stuffing box are brass, so perhaps the chemical composition of
corrosion in my
case was different from that of a steel nut rusted to a bolt.
I have even used Power Blaster to free a light bulb in my home freezer. It
was so badly corroded that
I was afraid I would break the glass if I tried too hard to unscrew it. One
shot of PB and it unscrewed
with no effort. My wife thinks I am a genius. Who am I to argue with the
Admiral?
That's my 2¢ worth. YMMV.
Micheal
S/V Tachyon
On Jun 2, 2009, at 12:00 PM, N7FN at aol.com wrote:
C&C'rs
I don't know how accurate this is, got it through another e-mail source.
Also, I haven't had a chance to try it.
I thought that with all of the rusty nuts out there someone might give it
a try and report back to us.
Good luck,
Frank
FOR YOU MECHANICS OUT THERE?????.SAVE $$$$..............BUCK????
.ACETONE IS FLAMABLE / VOLITILE SO "KEEP A LID ON IT"
Machinist's Workshop magazine actually tested penetrants for break out
torque on rusted nuts.
Significant results! They are below, as forwarded by an ex-student and
professional machinist, Bud Baker.
Don't forget the April 2007 "Machinist's Workshop" magazine comparison
test.
They arranged a subjective test of all the popular penetrants with the
control being the torque required to remove the nut from a "scientifically
rusted" environment.
Penetrating oil ..... Average load
None ...................... 516 pounds
WD-40 ................... 238 pounds
PB Blaster .............. 214 pounds
Liquid Wrench ........ 127 pounds
Kano Kroil ............... 106 pounds
ATF-Acetone mix.......53 pounds
The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic
transmission fluid and acetone.
Note the "home brew" was better than any commercial product in this one
particular test.
Our local machinist group mixed up a batch and we all now use it with
equally good results.
Note also that "Liquid Wrench" is about as good as "Kroil" for about 20%
of the price.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://cnc-list.com/pipermail/cnc-list_cnc-list.com/attachments/20090613/b69e827d/attachment-0001.html>